Optical phonon spectra of GaP nanoparticles prepared by nanochemistry
- 9 June 2003
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 82 (23) , 4059-4061
- https://doi.org/10.1063/1.1580635
Abstract
Gallium phosphide (GaP)nanoparticles have been synthesized by colloidal nanochemistry with two different surfactants: trioctylphosphine oxide and dodecylamine. Transverse optical (bulk) and surface optical phonons associated with the GaPnanoparticles were observed and studied experimentally by infrared transmission spectroscopy of a solid dispersion of these nanoparticles in cesium iodide pellets. These vibrational properties of the nanoparticles were used to obtain information about the crystallinity and surface interactions. The crystallinity and the stoichiometry of the samples were also examined and characterized by transmission electron microscopy, electron diffraction, and energy dispersive x-ray spectroscopy.Keywords
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